削木头
发表于 2025-3-21 18:23:16
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HALO
发表于 2025-3-21 21:41:00
Speech Digitization and Service Integration, kHz. In analog speech transmission, one of the shortcomings is noise and interference which is more significant during pauses. In digital transmission, speech and speech pauses are encoded with data pattern and transmitted at a constant power level which ensures better quality, provides higher capa
Reclaim
发表于 2025-3-22 02:03:56
AM, Angle Modulation and Digital Modulation Systems, frequencies in the signal. In carrier modulation, a baseband message signal is translated to a bandpass signal at frequencies that are very high when compared to the baseband frequency. In this modulation, one of the basic parameters amplitude, phase, or frequency of a high frequency carrier is var
大炮
发表于 2025-3-22 07:08:54
Telecommunication Systems, from each other. Any station equipment located in one place of the world, can communicate with any other station equipment in other place of the world. The station equipment could be a computer, a FAX machine, a teleprinter, a data terminal, and so on. Billions of station equipments, all over the w
Herbivorous
发表于 2025-3-22 09:42:15
Cellular Telephony System,ative communication worldwide. The aim of cellular phone is to provide telephone services to subscribers while in motion. In early days, the mobile radio systems use a single, high power transceiver with an antenna mounted high on a tall tower to obtain a large coverage area. Though, it could achiev
胰岛素
发表于 2025-3-22 15:36:52
Qualität von Software-Produktenits bandwidth, attenuation and the propagation delay. As the signal is attenuated while propagating through the channel, it must be regenerated after a certain distance to maintain signal quality. In general, a communication channel is the physical path between transmitter and receiver and is establ
胰岛素
发表于 2025-3-22 20:07:58
Spezielle Software-Technologien, kHz. In analog speech transmission, one of the shortcomings is noise and interference which is more significant during pauses. In digital transmission, speech and speech pauses are encoded with data pattern and transmitted at a constant power level which ensures better quality, provides higher capa
deviate
发表于 2025-3-23 00:33:35
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nostrum
发表于 2025-3-23 03:43:37
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sparse
发表于 2025-3-23 06:30:22
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